fix(deps): update dependency next to v16.1.5 [security]

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
next (source)	16.1.4 → 16.1.5

GitHub Vulnerability Alerts

CVE-2025-59471

A DoS vulnerability exists in self-hosted Next.js applications that have remotePatterns configured for the Image Optimizer. The image optimization endpoint (/_next/image) loads external images entirely into memory without enforcing a maximum size limit, allowing an attacker to cause out-of-memory conditions by requesting optimization of arbitrarily large images. This vulnerability requires that remotePatterns is configured to allow image optimization from external domains and that the attacker can serve or control a large image on an allowed domain.

Strongly consider upgrading to 15.5.10 and 16.1.5 to reduce risk and prevent availability issues in Next applications.

CVE-2025-59472

A denial of service vulnerability exists in Next.js versions with Partial Prerendering (PPR) enabled when running in minimal mode. The PPR resume endpoint accepts unauthenticated POST requests with the Next-Resume: 1 header and processes attacker-controlled postponed state data. Two closely related vulnerabilities allow an attacker to crash the server process through memory exhaustion:

1. Unbounded request body buffering: The server buffers the entire POST request body into memory using Buffer.concat() without enforcing any size limit, allowing arbitrarily large payloads to exhaust available memory.

2. Unbounded decompression (zipbomb): The resume data cache is decompressed using inflateSync() without limiting the decompressed output size. A small compressed payload can expand to hundreds of megabytes or gigabytes, causing memory exhaustion.

Both attack vectors result in a fatal V8 out-of-memory error (FATAL ERROR: Reached heap limit Allocation failed - JavaScript heap out of memory) causing the Node.js process to terminate. The zipbomb variant is particularly dangerous as it can bypass reverse proxy request size limits while still causing large memory allocation on the server.

To be affected, an application must run with experimental.ppr: true or cacheComponents: true configured along with the NEXT_PRIVATE_MINIMAL_MODE=1 environment variable.

Strongly consider upgrading to 15.6.0-canary.61 or 16.1.5 to reduce risk and prevent availability issues in Next applications.

GHSA-h25m-26qc-wcjf

A vulnerability affects certain React Server Components packages for versions 19.0.x, 19.1.x, and 19.2.x and frameworks that use the affected packages, including Next.js 13.x, 14.x, 15.x, and 16.x using the App Router. The issue is tracked upstream as CVE-2026-23864.

A specially crafted HTTP request can be sent to any App Router Server Function endpoint that, when deserialized, may trigger excessive CPU usage, out-of-memory exceptions, or server crashes. This can result in denial of service in unpatched environments.

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Next.js self-hosted applications vulnerable to DoS via Image Optimizer remotePatterns configuration

CVE-2025-59471 / GHSA-9g9p-9gw9-jx7f

More information

Details

A DoS vulnerability exists in self-hosted Next.js applications that have remotePatterns configured for the Image Optimizer. The image optimization endpoint (/_next/image) loads external images entirely into memory without enforcing a maximum size limit, allowing an attacker to cause out-of-memory conditions by requesting optimization of arbitrarily large images. This vulnerability requires that remotePatterns is configured to allow image optimization from external domains and that the attacker can serve or control a large image on an allowed domain.

Strongly consider upgrading to 15.5.10 and 16.1.5 to reduce risk and prevent availability issues in Next applications.

Severity

• CVSS Score: 5.9 / 10 (Medium)
• Vector String: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

References

• https://github.com/vercel/next.js/security/advisories/GHSA-9g9p-9gw9-jx7f
• https://nvd.nist.gov/vuln/detail/CVE-2025-59471
• https://github.com/vercel/next.js/commit/500ec83743639addceaede95e95913398975156c
• https://github.com/vercel/next.js/commit/e5b834d208fe0edf64aa26b5d76dcf6a176500ec
• https://github.com/vercel/next.js
• https://github.com/vercel/next.js/releases/tag/v15.5.10
• https://github.com/vercel/next.js/releases/tag/v16.1.5

This data is provided by OSV and the GitHub Advisory Database (CC-BY 4.0).

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Next.js has Unbounded Memory Consumption via PPR Resume Endpoint

CVE-2025-59472 / GHSA-5f7q-jpqc-wp7h

More information

Details

A denial of service vulnerability exists in Next.js versions with Partial Prerendering (PPR) enabled when running in minimal mode. The PPR resume endpoint accepts unauthenticated POST requests with the Next-Resume: 1 header and processes attacker-controlled postponed state data. Two closely related vulnerabilities allow an attacker to crash the server process through memory exhaustion:

1. Unbounded request body buffering: The server buffers the entire POST request body into memory using Buffer.concat() without enforcing any size limit, allowing arbitrarily large payloads to exhaust available memory.

2. Unbounded decompression (zipbomb): The resume data cache is decompressed using inflateSync() without limiting the decompressed output size. A small compressed payload can expand to hundreds of megabytes or gigabytes, causing memory exhaustion.

Both attack vectors result in a fatal V8 out-of-memory error (FATAL ERROR: Reached heap limit Allocation failed - JavaScript heap out of memory) causing the Node.js process to terminate. The zipbomb variant is particularly dangerous as it can bypass reverse proxy request size limits while still causing large memory allocation on the server.

To be affected, an application must run with experimental.ppr: true or cacheComponents: true configured along with the NEXT_PRIVATE_MINIMAL_MODE=1 environment variable.

Strongly consider upgrading to 15.6.0-canary.61 or 16.1.5 to reduce risk and prevent availability issues in Next applications.

Severity

• CVSS Score: 5.9 / 10 (Medium)
• Vector String: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

References

• https://github.com/vercel/next.js/security/advisories/GHSA-5f7q-jpqc-wp7h
• https://nvd.nist.gov/vuln/detail/CVE-2025-59472
• https://github.com/vercel/next.js
• https://vercel.com/changelog/summaries-of-cve-2025-59471-and-cve-2025-59472

This data is provided by OSV and the GitHub Advisory Database (CC-BY 4.0).

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Next.js HTTP request deserialization can lead to DoS when using insecure React Server Components

GHSA-h25m-26qc-wcjf

More information

Details

A vulnerability affects certain React Server Components packages for versions 19.0.x, 19.1.x, and 19.2.x and frameworks that use the affected packages, including Next.js 13.x, 14.x, 15.x, and 16.x using the App Router. The issue is tracked upstream as CVE-2026-23864.

A specially crafted HTTP request can be sent to any App Router Server Function endpoint that, when deserialized, may trigger excessive CPU usage, out-of-memory exceptions, or server crashes. This can result in denial of service in unpatched environments.

Severity

• CVSS Score: 7.5 / 10 (High)
• Vector String: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

• https://github.com/facebook/react/security/advisories/GHSA-83fc-fqcc-2hmg
• https://github.com/vercel/next.js/security/advisories/GHSA-h25m-26qc-wcjf
• https://nvd.nist.gov/vuln/detail/CVE-2026-23864
• https://github.com/vercel/next.js
• https://vercel.com/changelog/summary-of-cve-2026-23864

This data is provided by OSV and the GitHub Advisory Database (CC-BY 4.0).

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Release Notes

vercel/next.js (next)

v16.1.5

Compare Source

Please refer the following changelogs for more information about this security release:

https://vercel.com/changelog/summaries-of-cve-2025-59471-and-cve-2025-59472
https://vercel.com/changelog/summary-of-cve-2026-23864

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This is the brotli compressed size of the ESM build.
Compressed size: 25566 bytes
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Uncompressed size: 125383 bytes

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@launchdarkly/browser size report
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Uncompressed size: 800872 bytes

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This is the brotli compressed size of the ESM build.
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Uncompressed size: 83755 bytes

[github-actions]

@launchdarkly/js-client-sdk-common size report
This is the brotli compressed size of the ESM build.
Compressed size: 21281 bytes
Compressed size limit: 24000
Uncompressed size: 110213 bytes